我们对分子轨道的差分方程法作了改进,提出了计算稠环共轭分子能级的简化的分子轨道差分方程法。该法主要包括以下几部分: 1.不同子集合碳原子的划分:划分的原则是先找出整个分子的对称中心,然后以它为圆心,以中心到不同碳原子的距离为半径画圆,凡在同一圆上的碳原子,属于同一子集合。 We improved the molecular orbital difference equation method and proposed a simplified molecular orbital difference equation method for calculating the energy levels of the fused ring conjugated molecules. This method mainly includes the following parts: 1. The classification of different sub-sets of carbon atoms: The principle of division is to find out the symmetry center of the whole molecule first, and then take it as the center of the circle, taking the distance from the center to different carbon atoms as the radius, Where the same round of carbon atoms, belonging to the same sub-collection.